In addition to MM, pre-clinical data and the prior experience with thalidomide and lenalidomide in the treatment of patients with myelofibrosis with myeloid metaplasia (MMM) provided the rationale for the use of pomalidomide in patients with MMM. This is further supported by the results of a Celgene sponsored trial (MMM-001) which indicated that pomalidomide therapy at 0.5 mg or 2 mg/day +/- an abbreviated course of prednisone is well tolerated in patients with myelofibrosis and active in the treatment of anemia.